With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
smonVlanStatsControlTable
smon Vlan Stats Control Table
1.3.6.1.2.1.16.22.1.2.1
Controls the setup of VLAN statistics tables. The statistics collected represent a distribution based on the IEEE 802.1Q VLAN-ID (VID), for each good frame attributed to the data source for the collection.
Back to SMON-MIB MIB page.
IPHost Network monitor allows you to monitor smonVlanStatsControlTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.